Weaving machine for the manufacture of leno cloths

ABSTRACT

A weaving machine for the manufacture of leno cloths includes a leno apparatus with leno elements ( 5, 5′, 7, 7′, 8, 8′ ) for the forming of a shed ( 6 ) as well as additionally a cleaning apparatus with a plurality of nozzles ( 10.1, 10.2, 11, 13 ) for the removal of contaminations in the region of the leno apparatus and of the shed ( 6 ). Two of the nozzles ( 10.1, 10.2 ) are arranged above the shed, by means of which a compressed air flow ( 16.1 - 16.4 ) which is directed downwardly through the shed ( 6 ) from above is produced, and one of the nozzles ( 11 ) is arranged in the lower region of the leno elements, by means of which a compressed air flow ( 17 ) which is directed substantially horizontally towards the leno elements ( 5, 5′, 7, 7′, 8, 8′ ) is produced. In addition, a suction nozzle ( 13 ) by means of which a downwardly directed suction air flow ( 19 ) is produced is arranged beneath the shed.

[0001] The invention relates to a weaving machine for the manufacture ofleno cloths in accordance with the preamble of claim 1 and to a methodfor cleaning a weaving machine in accordance with the preamble of claim7.

[0002] Newer generations of weaving machines for the manufacture of lenocloths, in particular of leno cloths which serve as base fabrics for themanufacture of carpets, are being operated at increasing speeds ofrotation. The increase in the speeds of rotation became possible aboveall through the use of airjet weft insertion systems, through which itwas possible to achieve a considerable increase in performance. Withthis increase in performance the contamination through fibre fly alsoincreased. In dependence on the kind of warp thread material,accumulations of fibre fly are formed in the region of the lenoapparatus, more precisely at the elements of the leno apparatus, e.g. atneedle bars, deflection elements or insertion rails. The fibre flyformation is particularly extreme when using fibre yarns, such as forexample cotton.

[0003] In a weaving machine for the manufacture of cloths with simplewarp thread systems, such as for example cloths with canvas binding andtheir derivatives, the warp threads cross one another at each newforming of a shed, i.e. the lower warp threads come to lie upwardly andthe upper ones downwardly. Through this crossing of warp threads in theforming of a shed, large accumulations of fibre fly in the shed arelargely avoided.

[0004] In the manufacture of leno cloths, in particular of semi lenocloths, which serve as base fabrics for the manufacture of carpets, thesame warp threads always lie upwardly or downwardly respectively in theshed. The ground threads and the leno threads are lifted with respect toone another after a weft insertion only to such an extent as is requiredfor the change of side of the leno threads. The fibre fly can thusaccumulate without hindrance at the elements of the leno apparatus. Thisis especially true of the rear region of the shed. Larger accumulationswhich come loose from the elements of the leno apparatus are alsoenclosed in the region of the shed between the ground and leno threadsand can be removed from there only with difficulty.

[0005] To avoid blockages in the thread passages of the leno apparatus,as well as the thread breakages and the corresponding longer standstilltimes of the weaving machine resulting therefrom, the newer weavingmachines for the manufacture of leno cloths must be stopped as aprecautionary measure for the purpose of removing fibre flyaccumulations. This is time consuming and reduces the weavingperformance. So-called travelling clearers, such as are known from theprior art, produce only an insufficient cleaning effect in the criticalregions of the leno apparatus.

[0006] The object of the invention is to make available a weavingmachine for the manufacture of leno cloths which need not be stopped forcleaning the leno apparatus and the shed. A further object of theinvention is to make available a method for cleaning a weaving machinefor the manufacture of leno cloths by means of which contaminations ofthe leno apparatus and of the shed can be effectively removed.

[0007] This object is satisfied in accordance with the invention throughthe weaving machine which is defined in claim 1 and through the methodwhich is defined in claim 7.

[0008] The weaving machine in accordance with the invention for themanufacture of leno cloths includes a leno apparatus with leno elementsfor the forming of a shed. The weaving machine additionally includes acleaning apparatus which is integrated into the weaving machine for theremoval of contaminations in the region of the leno apparatus and/or ofthe shed.

[0009] In a preferred embodiment the weaving machine is equipped in aknown manner with a reed, and the leno elements comprise guide elementsand a deflection element for ground threads as well as leno thread guideelements. In the preferred embodiment the integrated cleaning apparatusincludes one or more nozzles, by means of which a substantiallyhorizontal compressed air flow which is transverse to the direction oftravel of the ground and leno threads can be produced in the regionbetween the ground and leno threads, in particular in the rear part ofthe shed. In a further preferred embodiment the integrated cleaningapparatus includes at least one nozzle which is arranged between thereed and the leno thread guide elements and by means of which acompressed air flow or suction air flow can be produced which isdirected downwardly through the shed from above. In a further preferredembodiment the integrated cleaning apparatus includes at least onenozzle which is arranged in the lower region of the leno elements and bymeans of which a compressed air flow or suction air flow directedtowards the leno elements can be produced.

[0010] In one variant the cleaning apparatus includes two nozzles whichare fed with compressed air, which are arranged between the reed and theleno thread guide elements and which are directed towards the shed fromabove, with one of the two nozzles being arranged between the reed andthe ground thread guide elements and the other nozzle being arrangedbetween the ground thread and leno thread guide elements. In a furthervariant the cleaning apparatus includes at least two nozzles, of whichone nozzle has a substantially horizontal jet direction and one nozzlehas a substantially vertical jet direction.

[0011] The integrated cleaning apparatus preferably includes at leastone nozzle which is arranged to be movable in the longitudinal directionof the reed. The integrated cleaning apparatus preferably includes atleast one nozzle which is designed as a stationarily arranged slitnozzle with a horizontal slit arrangement. The integrated cleaningapparatus preferably includes one or more stationarily mounted suctionnozzles and/or a suction passage which are or is arranged beneath theshed transverse to the direction of travel of the ground and lenothreads.

[0012] The deflection element in the leno apparatus of the weavingmachine is preferably acted on by compressed air and includes nozzles bymeans of which a substantially horizontal compressed air flow transverseto the direction of travel of the ground and leno threads can beproduced in the region between the ground and leno threads.

[0013] In a further preferred embodiment the weaving machine includes acontrol system in order to control the operation of the compressed airand/or suction nozzles of the integrated cleaning apparatus and in orderto activate the nozzles of the integrated cleaning apparatus. Thecontrol system preferably makes it possible to activate the nozzlesperiodically and/or cyclically and/or one after the other and/or whenrequired.

[0014] It is preferably possible for the weaving machine to be used in aweaving mill, said weaving mill being equipped with one or moretravelling clearers, with the named control system being suitable foractivating the integrated cleaning apparatus of the weaving machine inaccord with, i.e. in coordination with the travelling clearers.

[0015] The method in accordance with the invention for the cleaning of aweaving machine for the manufacture of leno cloths, said weaving machineincluding a leno apparatus with leno elements for the forming of a shed,is characterised in that contaminations in the region of the lenoapparatus and/or of the shed are removed by means of a cleaningapparatus which is integrated into the weaving machine.

[0016] In a preferred embodiment of the method the integrated cleaningapparatus of the weaving machine is activated via a control system inthe weaving machine. The weaving machine is preferably used in a weavingmill, said weaving mill being equipped with one or more travellingclearers, with the integrated cleaning apparatus of the weaving machinebeing activated in accord with the travelling clearers. Thecontaminations which are forwarded out of the shed by means of theinternal cleaning apparatus are preferably removed through travellingclearers.

[0017] In a further preferred embodiment of the method the shed isformed in a known manner from ground and leno threads. In addition, theintegrated cleaning apparatus includes a plurality of nozzles by meansof which a substantially horizontal compressed air flow transverse tothe direction of travel of the ground and leno threads is produced inthe region between the ground and leno threads, in particular in therear part of the shed. The nozzles are preferably charged withcompressed air periodically and/or cyclically and/or one after the otherand/or when required. The named nozzles preferably cooperate with atleast one substantially vertically oriented nozzle and/or at least onenozzle which is oriented substantially horizontally and opposite to thedirection of travel of the ground and leno threads.

[0018] By means of the cleaning apparatus which is integrated into theweaving machine in accordance with the invention and in particular bymeans of the described nozzle arrangement, contaminations in the regionof the leno apparatus and of the shed can be effectively removed. Anadvantageous cleaning action results when nozzles with a differentarrangement and/or with a different orientation of the compressed airflows and/or suction flows are combined, for example one or more nozzleswith substantially vertically directed compressed air flows and/orsuction flows with one or more nozzles with substantially horizontallydirected compressed air flows and/or suction flows. Particularlyadvantageous is a nozzle arrangement by means of which a substantiallyhorizontal compressed air flow transverse to the direction of travel ofthe ground and leno threads can be produced between the ground and lenothreads and by means of which contaminations, in particular also fibrefly accumulations which are enclosed in the region of the shed betweenthe ground and leno threads, can be removed.

[0019] Further advantageous embodiments result from the subordinateclaims and the drawings.

[0020] In the following the invention will be explained in more detailwith reference to the exemplary embodiments and with reference to thedrawings. Shown are:

[0021]FIG. 1 a first exemplary embodiment pertaining to the presentinvention,

[0022]FIG. 2 a variant with an additional suction nozzle and with lenothread guidance differing from that of FIG. 1,

[0023]FIG. 3 a second exemplary embodiment pertaining to the presentinvention with an upwardly disposed attachment of the ground threadguide element,

[0024]FIG. 4 a third exemplary embodiment pertaining to the presentinvention,

[0025]FIG. 5 a variant pertaining to the first exemplary embodiment withcompressed air nozzles which can be displaced in the longitudinaldirection of the reed,

[0026]FIG. 6 an enlarged section of the nozzle arrangement pertaining tothe variant shown in FIG. 5,

[0027]FIG. 7A a variant of a deflection element which is acted on bycompressed air,

[0028]FIG. 7B a further variant of a deflection element which is actedon by compressed air,

[0029]FIG. 8 a plan view of a weaving mill with weaving machines andtravelling clearers, and

[0030]FIG. 9 a detail view of FIG. 8 with a weaving machine andtravelling clearer as seen from the side.

[0031] In some publications on the manufacture of leno cloths thedesignations ‘ground thread’ and ‘leno thread’ are reversed with respectto the following description. The choice of the terminology has noinfluence on the design and functioning of the described apparatushowever.

[0032]FIG. 1 shows a first exemplary embodiment of a weaving machine forthe manufacture of leno cloths in accordance with the present invention.The weaving machine includes in a known manner a leno apparatus and areed 2 for beating up the inserted weft thread. The leno apparatusincludes guide elements 7 and a deflection element 5, 5′ for groundthreads 4 as well as leno thread guide elements 8, 8′ for forming a shed6 and for producing the leno binding. In the following the shed 6includes not only the front shed which lies between the reed 2 and thebeat up edge, but rather the entire region between the ground and lenothreads 3, 3′, 4, which is enclosed by the ground and leno threads,which are raised and/or lowered to different levels. The ground threadguide elements 7 in the exemplary embodiment are designed as a needlebar with ground lamella which are provided at the free end with eyes.The leno thread guide elements 8, 8′ are designed as an insertion rail.In place of the insertion rail, a second needle bar with fixed ormovable leno lamella and/or heald frames can also be used to guide theleno threads 3, 3′.

[0033] In addition the weaving machine also includes a cleaningapparatus with a plurality of nozzles 10.1, 10.2, 11, 11′ which isintegrated into the weaving machine. In the first exemplary embodimenttwo nozzles 10.1, 10.2 which are fed with compressed air and which aredirected towards the shed 6 from above are arranged between the reed 2and the leno thread guide elements 8, 8′, with one of the two nozzles10.1 being arranged between the reed 2 and the ground thread guideelements 7 and the other nozzle 10.2 being arranged between the groundthread guide element 7 and the leno thread guide elements 8, 8′. Acompressed air flow 16.1, 16.2 which is directed downwards through theshed 6 from above can be produced by means of the two nozzles 10.1,10.2. A further nozzle 11 is arranged in the lower region of the groundthread guide elements 7, by means of which a compressed air flow 17which is directed towards the ground thread guide elements 7 and/or thedeflection element 5 can be produced. The compressed air flow 17 ispreferably horizontally directed. In a variant the deflection element 5′is arranged offset from the ground thread guide elements 7. By means ofan additional nozzle 11′ which is provided in the region of the offsetdeflection element 5′, a compressed air flow 17′ can be produced whichis directed towards the deflection element.

[0034] In an advantageous variant, which is shown in FIG. 2, theintegrated cleaning apparatus includes a suction nozzle 13 which isarranged beneath the shed 6 and preferably in the region of thedeflection element 5. A suction air flow 19 which is directed downwardlythrough the shed 6 from above can be produced by means of the suctionnozzle 13. In the variant shown, the air flow 19 assists the cleaningaction of the compressed air flows 16.1, 16.2 which act from above andserves to remove the blown away fibre fly from the machine. In place ofan individual suction nozzle 13, a row of suction nozzles 13 and/or asuction passage arranged horizontally and transverse to the direction oftravel of the ground and leno threads 3, 3′, 4 can advantageously beprovided.

[0035] In a further variant pertaining to the first exemplaryembodiment, which is shown in FIG. 5, the integrated cleaning apparatusincludes a compressed air blower 9, which supplies the nozzles 10.1,10.2, which are directed from above towards the shed 6, with compressedair. The compressed air blower 9 is movably mounted together with thenozzles 10.1, 10.2 on a cross beam 20, so that the nozzles can bedisplaced parallel to the longitudinal direction of the reed 2, 2′. Thedisplaceable arrangement of the nozzles enables a cleaning over theentire weaving width. The nozzle 11, which is arranged in the lowerregion of the ground thread guide elements 7 and by means of which acompressed air flow 17 directed towards the ground thread guide elements7 and/or the deflection element 5 can be produced, is designed as astationarily arranged slit nozzle with a horizontal slit arrangement.Alternatively, a nozzle 11 which is movable in the longitudinaldirection of the reed 2, 2′ can be provided at this location.

[0036]FIG. 6 shows an enlarged section of the nozzle arrangementpertaining to the variant which is shown in FIG. 5. The reed is shown inFIG. 6 in the beat up position. Likewise illustrated is the position ofthe ground thread guide elements 7′, of the deflection element 5′ and ofthe leno thread guide elements 8′ as well as the position 3′, 4′ of theground and leno threads when the reed is in the beat up position.

[0037] In a second exemplary embodiment pertaining to the presentinvention, which is shown in FIG. 3, the orientation of the groundthread guide elements 7 is inverted with respect to the first exemplaryembodiment, i.e. the attachment of the ground thread guide elements isnow disposed at the top and the eyes of the ground needles are nowarranged at the lower end. In the second exemplary embodiment theintegrated cleaning apparatus includes three nozzles 10.1-10.3 which arefed with compressed air, which are arranged between the reed 2 and theleno thread guide elements 8, 8′ and which are directed from abovetowards the shed 6, with one of the three nozzles 10.1 being arrangedbetween the reed 2 and the ground thread guide elements 7 and one eachof the nozzles 10.2, 10.3 being arranged ahead of and behind thedeflection element 5 respectively. A compressed air flow 16.1 which isdirected downwardly through the shed 6 from above can be produced bymeans of the three nozzles 10.1-10.3. A further nozzle 11 is arranged inthe lower region of the ground thread guide elements 7, by means ofwhich a compressed air flow 17 directed towards the eyes of the groundthread guide elements 7 can be produced.

[0038] Furthermore, in the second exemplary embodiment the integratedcleaning apparatus is provided with a suction nozzle 13 which isarranged beneath the shed 6 and preferably between the ground threadguide elements 7 and leno thread guide elements 8, 8′. An air flow 19which is downwardly directed through the shed 6 from above can beproduced by means of the suction nozzle 13. In the second exemplaryembodiment the suction air flow 19 assists the cleaning action of thecompressed air flow 16.1 which acts from above and serves to remove theblown away fibre fly from the weaving machine. A row of suction nozzles13 and/or a suction passage arranged horizontally and transverse to thedirection of travel of the ground and leno threads 3, 3′, 4 canadvantageously be provided in place of an individual suction nozzle 13.

[0039]FIG. 4 shows a third exemplary embodiment pertaining to thepresent invention, in which the integrated cleaning apparatus includesone or more nozzles 12.1 which are arranged ahead of the ground threadguide elements 7 when viewed in the direction of travel of the groundand leno threads 3, 3′ and 4. The nozzles 12.1 are arranged in such amanner that a substantially horizontal compressed air flow which istransverse to the direction of travel of the ground and leno threads canbe produced between the ground and leno threads by means of the nozzles.The nozzles 12.1 are preferably arranged in a row between the ground andleno threads. In one variant the nozzles 12.1 are designed as relaynozzles, with it being possible for the nozzles to be charged withcompressed air cyclically in the sense of a wandering field. By means ofthe nozzle or nozzles 12.1 fibre fly accumulations, in particular alsolarger accumulations, which are enclosed in the region of the shedbetween the ground and leno threads can be blown out to the selvedge andremoved. FIG. 4 also shows two variants with a second arrangement 12.2and a third arrangement 12.3 of the nozzles, by means of which asubstantially horizontal compressed air flow transverse to the directionof travel of the ground and leno threads can be produced. In the secondarrangement 12.2 the nozzles are arranged ahead of the ground threadguide elements 7 when viewed in the direction of travel of the groundand leno threads 3, 3′, 4, as in the basic variant of the thirdexemplary embodiment, and in the third arrangement 12.3 the nozzles arearranged between the reed 2 and the ground thread guide elements 7.

[0040] In two further advantageous variants, which are illustrated inFIGS. 7A and 7B, the deflection element 5 of the leno apparatus isformed as a part of the integrated cleaning apparatus. For this purposethe deflection element 5 is charged with compressed air and includesnozzles 12.1-12.4 for the removal of fibre fly from the surroundings ofthe deflection element and from the shed 6. In the variant which isshown in FIG. 7A the nozzle openings of the nozzles 12.1-12.4 are letdirectly into the deflection element, whereas in the variant which isshown in FIG. 7B, the nozzle openings of the nozzles 12.1, 12.2 arearranged to be spaced from the deflection element 5. The deflectionelement 5 also expediently includes nozzles 12.1-12.4 by means of whicha substantially horizontal compressed air flow transverse to thedirection of travel of the ground and leno threads can be producedbetween the ground and leno threads (3, 3′, 4, 4′).

[0041] In a preferred embodiment the weaving machine includes inaccordance with one of the above described exemplary embodiments acontrol system in order to control the operation of the compressed airor suction nozzles of the integrated cleaning apparatus, for example inthat the nozzles are activated periodically and/or cyclically and/or oneafter the other and/or when required. This enables an economically idealoperation of the cleaning apparatus.

[0042]FIG. 8 shows a plan view of a weaving mill with a large number ofweaving machines 1, 1′ and a travelling clearer 31. The travellingclearer 31 is displaceably mounted on a guide, with the guide beingdesigned in such a manner that the travelling clearer is guided over allweaving machines during the displacement. The weaving machine 1, 1′ ispreferably equipped with an integrated cleaning apparatus in accordancewith one of the above described exemplary embodiments and with a controlsystem which is suitable for activating the integrated cleaningapparatus in accord with the travelling clearer 31.

[0043]FIG. 9 shows a side view of a weaving machine 1 and of atravelling clearer 31. The weaving machine is equipped with an internalcleaning apparatus which includes a blower 9 which is displaceablyarranged on a cross beam 20 of the weaving machine. The travellingclearer includes compressed air nozzles 32 which are directed towardsthe weaving machine from above and suction nozzles 33 which are arrangedjust above the base in order to take up the contaminations which areblown away by the compressed air nozzles 32. The internal cleaningapparatus of the weaving machine 1 is advantageously activated when thetravelling clearer 31 approaches the weaving machine.

[0044] A first exemplary embodiment of a method in accordance with theinvention for cleaning a weaving machine for the manufacture of lenocloths will be described in the following with reference to FIGS. 1, 2and 4. The weaving machine includes in a known manner a leno apparatuswith leno elements 5, 7, 8, 8′ for forming a shed 6. The method isdistinguished in that contaminations in the region of the leno apparatusand/or of the shed are removed by means of a cleaning apparatus which isintegrated into the weaving machine.

[0045] In a preferred embodiment of the method the shed 6 is formed in aknown manner by ground threads 4, 4′ and leno threads 3, 3′. In additionthe integrated cleaning apparatus includes a plurality of nozzles 12.1,by means of which a substantially horizontal compressed air flowtransverse to the direction of travel of the ground and leno threads isproduced in the region between the ground and leno threads, inparticular in the rear part of the shed. In one variant the nozzles arecharged with compressed air periodically and/or cyclically and/or oneafter the other and/or when required. In a further variant the namednozzles cooperate with at least one substantially vertically orientednozzle or with at least one nozzle which is oriented substantiallyhorizontally opposite to the direction of travel of the ground and lenothreads.

[0046] In a further preferred embodiment of the method the integratedcleaning apparatus of the weaving machine is controlled and/or activatedvia a control system in the weaving machine. In a variant which will beexplained in more detail in the following with reference to FIGS. 8 and9 the weaving machine 1, 1′ is used in a weaving mill, said weaving millbeing equipped with one or more travelling clearers 31, with theintegrated cleaning apparatus of the weaving machine being activated incoordination with the travelling clearers 31. The contaminations whichare forwarded out of the shed of the weaving machine 1, 1′ by means ofthe integrated cleaning apparatus are preferably removed through thetravelling clearers 31.

1. Weaving machine for the manufacture of leno cloths, including a lenoapparatus with leno elements for the forming of a shed (6),characterized in that the weaving machine (1, 1′) additionally includesa cleaning apparatus integrated into the weaving machine (1, 1′) for theremoval of contaminations in the region of the leno apparatus and/or theshed.
 2. Weaving machine in accordance with claim 1, with the weavingmachine (1, 1′) being equipped in a known manner with a reed (2, 2′),and with the leno elements including guide elements (7, 7′) and adeflection element (5, 5′) for ground threads (4, 4′) as well as lenothread guide elements (8, 8′), characterized in that the integratedcleaning apparatus includes one or more nozzles (10.1-10.3, 11, 11′,12.1-12.4, 13), with one or more of the nozzles (12.1-12.4) beingarranged in such a manner that a substantially horizontal compressed airflow (18.1-18.4) transverse to the direction of travel of the ground andleno threads (3, 3′, 4, 4′) can be produced in the region between theground and leno threads by means of the nozzles (12.1-12.4), inparticular in the rear part of the shed (6) and/or with at least one ofthe nozzles (10.1-10.3) being arranged between the reed (2, 2′ and theleno thread guide elements (8, 8′), by means of which a compressed airflow (16.1-16.4) which is directed downwardly through the shed (6) fromabove or a suction air flow (19) can be produced, and/or with at leastone of the nozzles (11, 11′) being arranged in the lower region of theleno elements, by means of which a compressed air flow (17.1-17.4) canbe produced or a suction air flow which is directed towards the lenoelements (5, 5′, 7, 7′, 8, 8′).
 3. Weaving machine in accordance withclaim 1 or claim 2, with the integrated cleaning apparatus including atleast one nozzle which is arranged so as to be movable in thelongitudinal direction of the reed (2, 2′) and/or at least one nozzlewhich is designed as a stationarily arranged slit nozzle with ahorizontal slit arrangement.
 4. Weaving machine in accordance with anyone of the claims 1 to 3, with the deflection element (5, 5′ being actedon by compressed air and including nozzles (12.1-12.4) by means of whicha substantially horizontal compressed air flow (18.1-18.4) transverse tothe direction of travel of the ground and leno threads (3, 3′, 4, 4′)can be produced in the region between the ground and leno threads. 5.Weaving machine in accordance with any one of the claims 1 to 4,including a control system in order to be able to activate the nozzlesof the integrated cleaning apparatus periodically and/or cyclicallyand/or one after the other and/or when required.
 6. Weaving machine inaccordance with claim 5, with it being possible to use the weavingmachine (1, 1′) in a weaving mill, said weaving mill being equipped withone or more travelling clearers (31), and with the named control systembeing suitable for activating the integrated cleaning apparatus of theweaving machine (1, 1′) in accord with the travelling clearers (31). 7.Method for cleaning a weaving machine for the manufacture of lenocloths, said weaving machine (1, 1′) including a leno apparatus withleno elements for the formation of a shed (6), characterized in thatcontaminations in the region of the leno apparatus and/or of the shed(6) are removed by means of a cleaning apparatus which is integratedinto the weaving machine (1, 1′).
 8. Method in accordance with claim 7,with the integrated cleaning apparatus of the weaving machine (1, 1′)being activated via a control system in the weaving machine (1, 1′). 9.Method in accordance with claim 7 or claim 8, with the weaving machine(1, 1′) being used in a weaving mill, said weaving mill being equippedwith one or more travelling clearers (31), and with the integratedcleaning apparatus of the weaving machine (1, 1′) being activated inaccord with the travelling clearers (31), and/or with the contaminationswhich are forwarded out of the shed being removed through the travellingclearers (31).
 10. Method in accordance with any one of the claims 7 to9, with the shed (6) being formed of ground threads (4, 4′) and lenothreads (3, 3′), characterized in that the integrated cleaning apparatusincludes a plurality of nozzles (12.1-12-4) by means of which asubstantially horizontal compressed air flow (18.1-18.4) which istransverse to the direction of travel of the ground and leno threads (3,3′, 4, 4′) is produced in the region between the ground and lenothreads, in particular in the rear part of the shed (6).
 11. Method inaccordance with any one of the claims 7 to 10, with the nozzles(12.1-12-4) being fed with compressed air periodically and/or cyclicallyand/or one after the other and/or when required.
 12. Method inaccordance with any one of the claims 7 to 11, with the nozzles(12.1-12-4) cooperating with at least one substantially verticallyoriented nozzle (10.1-10.3) and/or with at least one nozzle (11, 11′)which is oriented substantially horizontally opposite to the directionof travel of the ground and leno threads (3, 3′, 4, 4′).